5:9 The fruit of the light - Opposite to the unfruitful works of darkness, Eph 4:11. Is in - That is, consists in. Goodness and righteousness and truth - Opposite to the sins spoken of, Eph 4:25, and c.

Ephesians 5:9 Parallel Commentaries

Unfruitful Works of Darkness
'And have no fellowship with the unfruitful works of darkness, but rather reprove them.'--Eph. v. 11. We have seen in a former sermon that 'the fruit,' or outcome, 'of the Light' is a comprehensive perfection, consisting in all sorts and degrees of goodness and righteousness and truth. Therefore, the commandment, 'Walk as children of the light,' sums up all Christian morality. Is there need, then, for any additional precept? Yes; for Christian people do not live in an empty world. If there were …
Alexander Maclaren—Expositions of Holy Scripture Ephesians, Peter,John

Sleepers at Noonday
'Wherefore He saith, Awake thou that sleepest, and arise from the dead, and Christ shall give thee light,'--Eph. v. 14. This is the close of a short digression about 'light.' The 'wherefore' at the beginning of my text seems to refer to the whole of the verses that deal with that subject. It is as if the Apostle had said, 'I have been telling you about light and its blessed effects. Now I tell you how you may win it for yours. The condition on which it is to be received by men is that they awake …
Alexander Maclaren—Expositions of Holy Scripture Ephesians, Peter,John

What Children of Light Should Be
'Walk as children of light.'--Eph. v. 8. It was our Lord who coined this great name for His disciples. Paul's use of it is probably a reminiscence of the Master's, and so is a hint of the existence of the same teachings as we now find in the existing Gospels, long before their day. Jesus Christ said, 'Believe in the light, that ye may be the children of light'; and Paul gives substantially the same account of the way by which a man becomes a Son of the Light when he says, in the words preceding …
Alexander Maclaren—Expositions of Holy Scripture Ephesians, Peter,John